Newest iPhone 4.0 Beta Implies That AT&T Is Finally Ready For TetheringRosa Golijan5/18/10 9:39pm229EditInvite manuallyPromoteDismissUndismissHideYes! Yes! Yes! Those sounds you heard moments ago are the horrified screams of your nearest AT&T towers. Why? Because iPhone OS 4.0 Beta 4 brings us a new option in the settings menu: Tethering.